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Biblioteka

Atomic Theory and periodic table

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Posljednje ažuriranje almost 6 years ago
34 questions
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Pitanje 1
1.

The Ion Charge Determines the Number of Which Subatomic Particle?

Pitanje 2
2.

_______________ discovered the electron using a ____________________;

Pitanje 3
3.

The first person to suggest the existence of atoms was _______________.

Pitanje 4
4.

By using the gold foil experiment and directing positively charged alpha particles at the foil, Ernest Rutherford discovered the ________________.

Pitanje 5
5.

While studying Ernest Rutherford's work, _______________ realized that there was another particle in the nucleus, that he later named the neutron.

Pitanje 6
6.

Match the particle with its charge.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Electron

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Positive

Proton

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neutral

Neutron

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negative

Pitanje 7
7.

Which of the following is the sum of the protons and neutrons in an atom?

Pitanje 8
8.

Lithium, a highly reactive metal, has an atomic number of _________.

Pitanje 9
9.

Determine the mass number of an atom that has 9 protons and 8 neutrons.

Pitanje 10
10.
  • Niels Bohr

  • Schrodinger, Einstein, and others

  • J.J. Thomson

  • John Dalton

  • Ernest Rutherford

  • Plum Pudding model

  • Billiard Ball model

  • Planetary, or nuclear model

Pitanje 11
11.

Isotopes are atoms of the same element with different ______________.

Pitanje 12
12.

All elements are electrically ______________ because they have an equal number of protons and neutrons.

Pitanje 13
13.

The ___________ model of the atom arrange electrons in orbits or specific paths around the nucleus.

Pitanje 14
14.

Match the scientist with his experiment.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Erwin Schrodinger

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Gold foil experiment

James Chadwick

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Cathode Ray Tube

Ernest Rutherford

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Oil Drop experiment

Robert Millikan

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Neutron discovery

J.J. Thomson

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Quantum theory discovery

Pitanje 15
15.

This is the scientist given the credit for the formation of the periodic table:

Pitanje 16
16.

What is the name of this group on the periodic table?

Pitanje 17
17.

What is the name of the group highlighted in lilac?

Pitanje 18
18.

What is the name of the group highlighted in orange?

Pitanje 19
19.

What are the two rows of elements at the bottom of the chart called (the general name for both rows)?

Pitanje 20
20.

The elements highlighted in blue are known as what? They bridge the gap between group 2A and 3A.

Pitanje 21
21.

Can you name two transition metals?

Pitanje 22
22.

What percentage (roughly) of the elements are nonmetals?

Pitanje 23
23.

What is the name of the group 7A (left of the nonreactive gases on the far right)?

Pitanje 24
24.

The elements arranged on the stair-step line between the metals and non-metals are called what? (Olive green in this picture)

Pitanje 25
25.

Bonus: Name the two elements that are liquid at room temperature.

Pitanje 26
26.

Can you name two metalloids?

Pitanje 27
27.

Name two elements that are solids at room temperature.

Pitanje 28
28.

Name two elements that are gases at room temperature.

Pitanje 29
29.

The Atomic Number of an Element Determines the Number of Which Subatomic Particle?

Pitanje 30
30.

Describe 2 properties of Alkali metals (can be chemical or physical)

Pitanje 31
31.

The Ion Charge Determines the Number of Which Subatomic Particle?

Pitanje 32
32.

All the atoms of the same element are identical

Pitanje 33
33.

Bonus: What makes Noble Gases unique?

Pitanje 34
34.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

blue hexagon

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element symbol

Green square

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element name

purple oval

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atomic number

red star

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mass number